Graduate Program in Physics at UFSC, Florianópolis
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    Publicado em 01/03/2019 às 07:00 AM

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  • Seminar with professor Prof. Giorgio Torrieri – April 17, 2019 (wednesday) – 3:00 p.m.

    Publicado em 11/04/2019 às 11:40 AM

    THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar:

    The ideal Hydrodynamic Limit and its extensions
    Prof. Giorgio Torrieri
    UNICAMP

    Abstract:

    We use effective field theory techniques to extend the ideal hydrodynamic limit to systems which, while strongly coupled and instantly thermalizing, exhibit characteristics which are usually not captured by transport theory. We concentrate on systems with non-negligible polarization as well as systems whose microscopic degrees of freedom exhibit non-Abelian gauge symmetry.

     

    Date: April 17, 2019 – (wednesday) – Place: Sala 114 – Sala de reuniões do Departamento de Física – Time: 3:00 p.m.


  • Defence of M.Sc. dissertation of Daniel Souza Lima – April 10, 2019 – 2:00 pm

    Publicado em 05/04/2019 às 11:59 AM

    The Physics Graduate Program invites everyone to:

    Defence of M.Sc. dissertation

    Daniel Souza Lima

    ANÁLISE DE DIAGRAMAS EM ESPALHAMENTO DUPLO DE PÁRTONS À ORDEM SEGUINTE À DOMINANTE

    Defense Commitee

    Prof. Dr. Emmanuel Gräve de Oliveira – (president) – UFSC/FSC
    Prof. Dr. Cristiano Brenner Mariotti – (external member) – FURG
    Prof. Dr. Jeferson de Lima Tomazelli – (local member) – UFSC/FSC
    Prof. Dr. Alexandre Magno Silva Santos – (external member) – UFSC/FSC

    Date: April 10, 2019 – wednesday – Time: 2:00 pm – Place: Sala 114 – Sala de Reuniões do Departamento de Física


  • Qualifying Examination for Doctoral Thesis of Patrick Antonio Morelo – April 10, 2019 – wednesday – 10 am

    Publicado em 05/04/2019 às 08:27 AM

    The Physics Graduate Program invites everyone to:

    Qualifying Examination for Doctoral Thesis

    Patrick Antonio Morelo

    ESTUDO DE MODELO PARA O RECONHECIMENTO DE FORMAS NO SISTEMA VISUAL E DE MODELO PARA SÍNDROME CARDÍACA DO QT LONGO

    Defense Committee:

    Prof. Dr. Marcelo Henrique Romano Tragtenberg – (president) – UFSC/FSC
    Profª. Drª. Fernanda Selingardi Matias – (external member) – UFAL
    Prof. Dr. Lucas Nicolao – (local member) – UFSC/FSC
    Prof. Dr. Germano Heinzelmann – (local member) – UFSC/FSC

    Date: April 10, 2019 – wednesday – Time: 10 am – Place: Sala 114 – Sala de Reuniões do Departamento de Física


  • Defence of M.Sc. dissertation of Marcos da Maia Vicente Júnior – April 9, 2019 – 2 pm

    Publicado em 04/04/2019 às 02:58 PM

    The Physics Graduate Program invites everyone to:

    Defence of M.Sc. dissertation

    Marcos da Maia Vicente Júnior

    BUSCAS POR TRÂNSITOS PLANETÁRIOS AO REDOR DE ESTRELAS ANÃS M DA REGIÃO DO BOJO GALÁCTICO

    Defense Commitee

    Prof. Dr. Roberto Kalbusch Saito – (president) – UFSC/FSC
    Prof. Dr. Rubens Tadeu Delgado Duarte – (external member) – UFSC/MIP/CCB
    Prof. Dr. Daniel Ruschel Dutra – (local member) – UFSC/FSC

    Date: April 9, 2019 – tuesday – Time: 2 pm – Place: Sala 114 – Sala de Reuniões do Departamento de Física


  • Seminar with professor Fabian Maucher – April 9, 2019 (tuesday) – 4:00 p.m.

    Publicado em 04/04/2019 às 11:09 AM

    THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar:

    Pattern-formation and Critical Behaviour in Dipolar Bose-Einstein Condensates
    Fabian Maucher

    Department of Physics and Astronomy, Aarhus University, 8000 Aarhus C, Denmark

    Abstract:

    Fabian Maucher, Yong-Chang Zhang, and Thomas Pohl
    Department of Physics and Astronomy, Aarhus University, 8000 Aarhus C, Denmark 
    The formation of patterns with long-range order continues to fascinate scientists from a broad range of natural sciences [1]. In this talk I will discuss pattern-formation in dipolar Bose-Einstein condensates. In this system the possibility of obtaining quantum states with self-organized long-ranged ordering can be facilitated by quantum fluctuations which suppress collapse and pave the way for supersolids in this system [2]. Here, supersolidity refers to a state of matter which displays long-range ordering whilst maintaining a large superfluid fraction. I will present recent results which focus on the critical behaviour of the superfluid-supersolid phase-transition [3] and the crucial role quantum fluctuations can play for the latter. We find that quantum fluctuations can alter the order of the phase transition from first- to second order. Furthermore, apart from the usual triangular lattice of density droplets, quantum fluctuations can give rise to a novel quantum state whose density distribution displays a honeycomb structure.

    [1] A. M. Turing, Philos. Trans. Royal Soc. B 23 237 (1952).
    [2] H. Kadau, M. Schmitt, M. Wenzel, C. Wink, T. Maier, I. Ferrier-Barbut, T. Pfau, Nature 530 194 (2016).
    [3] Y. Zhang, F.M., T. Pohl, arXiv:1903.06161v1 (2019).

    Date: April 9, 2019 – (tuesday) – Place: Sala 212 – Auditório do Departamento de Física – Time: 4:00 p.m.


  • Seminar with professor Profª. Drª. Débora Peres Menezes – April 5, 2019 (friday) – 10:15 am

    Publicado em 01/04/2019 às 11:25 AM

    THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar:

     

    A física nuclear como ferramenta para explicar magnetares e ondas gravitacionais

    Profª. Drª. Débora Peres Menezes
    UFSC/FSC

    Abstract:

    A neutron star was first detected as a pulsar in 1967. It is one of the most mysterious objects in the universe, with a radius of the order of 10 km and masses that can reach two solar masses. In 2017, a gravitational wave was detected (GW170817) and its source was identified as the merger of two neutron stars. The same event was seen in X-ray, gamma-ray, UV, IR, radio frequency and even in the optical region of the electromagnetic spectrum, starting the new era of multi-messenger astronomy. To understand neutron stars, an appropriate equation of state that satisfies bulk nuclear matter properties has to be used and GW170817 has provided some extra constraints to determine it.
    On the other hand, some neutron stars have strong magnetic fields up to 10 to the 15 Gauss on the surface as compared with the usual 10 to the 12 Gauss normally present in ordinary pulsars. They are called magnetars. While the description of ordinary pulsars is not completely established, describing magnetars poses a real challenge because the magnetic fields can produce an anisotropic equation of state. It is also known that low magnetic fields do not affect the equation of state and the resulting star macroscopic properties but they do affect the crust-core transition and the crust thickness with many consequences, as the explanation of glitches and the calculation of the Love number and quadrupole tidal polarisabilities.I will talk about the importance of the new constraints imposed by GW170817 in the determination of appropriate equations of state, possible ways to describe hadronic and quark matter subject to strong magnetic fields and the problems that lie ahead in the understanding of magnetars.

    Date: April 5, 2019 – (friday) – Place: Sala 212 – Auditório do Departamento de Física – Time: 10:15 am


  • Seminar with professor Prof. Dr. Airton Deppman – March 29, 2019 (friday) – 10:15 a.m.

    Publicado em 25/03/2019 às 08:26 AM

    THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar:

    Estruturas fractais nos campos de Yang-Mills

    Prof. Dr. Airton Deppman

    Instituto de Física – USP

    Abstract:

    A possibilidade de estruturas fractais em campos de Yang-Mills é investigada a partir de aspectos fundamentais da renormalização e da simetria de escala nessas teorias. É mostrado que as estruturas fractais são de fato possíveis de serem formadas, e que o comportamento da lei de potência emerge da existência de tais estruturas. Discutimos como os resultados obtidos estão relacionados a uma abordagem termodinâmica que mostrou que as estruturas fractais levam à estatística de Tsallis, e o índice entrópico que aparece nessa estatística não extensiva é calculado em termos dos parâmetros fundamentais da teoria de campo. Evidências experimentais são discutidas, bem como possíveis aplicações.

    Date: March 29, 2019 – (friday) – Place: Sala 212 – Auditório do Departamento de Física – Time: 10:15 a.m.


  • Seminar with professor Prof. Jorge Douglas Massayuki Kondo – March 27, 2019 (tuesday) – 6:30 p.m.

    Publicado em 25/03/2019 às 06:57 AM

    THE PHYSICS GRADUATE PROGRAM invites everyone to the seminar:

    Impressão 3D do Átomo às Estrelas

    Prof. Jorge Douglas Massayuki Kondo
    Departamento de Física – UFSC

    Abstract:

    A impressão 3D se tornou uma ferramenta importante na nova revolução industrial e científica. Neste seminário abordaremos algumas técnicas disponíveis para impressão tridimensional, sua disponibilidade, custos, benefícios e utilização. Tal ferramenta pode agilizar processos criativos de manufatura nas indústrias, através da impressão de protótipos mecânicos ou ainda de pesquisas de base dentro das Universidades atuando em diversos grupos. Apresentarei a impressora construída no Departamento de Física (Atom1) e suas aplicações, que podem ser das mais variadas, das pesquisas em física atômica/molecular e óptica quântica (desenvolvimento de lasers, câmaras de vácuos, etc.), passando pelas diversas áreas da medicina (próteses, modelos anatômicos, etc), seguindo para exploração espacial (peças de reposição, utilitários, etc).

    Date: March 27, 2019 – (tuesday) – Place: Auditório do Departamento de Química – Time: 6:30 p.m.


  • Defence of M.Sc. dissertation of Leandro de Oliveira Souza – March 29, 2019 – 2 pm

    Publicado em 23/03/2019 às 09:05 AM

    The Physics Graduate Program invites everyone to:

    Defence of M.Sc. dissertation

    Leandro de Oliveira Souza

    VARIAÇÕES CÍCLICAS DE PERÍODO ORBITAL EM BINÁRIAS CATACLÍSMICAS: TESTANDO A HIPÓTESE DE TERCEIRO CORPO

    Defense Commitee

    Prof. Dr. Raymundo Baptista – (president) – UFSC/FSC
    Prof. Dr. Leonardo Andrade de Almeida – (external member) – UFRN
    Prof. Dr. Alexandre Miers Zabot – (local member) – UFSC/Joinville
    Prof. Dr. Antônio Nemer Kanaan Neto – (local member) – UFSC/FSC

    Date: March 29, 2019 – friday – Time: 2 pm – Place: Sala 212 – Auditório do Departamento de Física


  • Qualifying Examination for Doctoral Thesis of Caio Eduardo Aguiar de Araújo – March 22, 2019 – friday – 9 am

    Publicado em 18/03/2019 às 10:40 AM

    The Physics Graduate Program invites everyone to:

    Qualifying Examination for Doctoral Thesis

    Caio Eduardo Aguiar de Araújo

    MODELANDO A SULFETAÇÃO DE NANOPARTÍCULAS METÁLICAS

    Defense Committee:

    Prof. Dr. Lucas Nicolao – (president) – UFSC/FSC
    Prof. Dr. Lucio Sartori Farenzena – (local member) – UFSC/FSC
    Prof. Dr. Márcio Santos – (local member) – UFSC/FSC
    Prof. Dr. Alejandro Mendoza Coto – (local member) – UFSC/FSC

    Date: March 22, 2019 – friday – Time: 9 am – Place: Sala 114 – Sala de Reuniões do Departamento de Física


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